I would argue that the Power Rangers are not that odd of a pairing for the Justice League.
Quality of the work aside, both are superhero teams with complicated lore. They could use that highlight differences/similarities in ideology or methodology between the characters to create drama, before setting aside their differences to come together against a shared evil. The bones of a good superhero story are there.
For real. Stupid Piece of Shit was the first time it really clicked that other people not only have internal monologues like that, but that it's a really unhealthy way to see things.